Added an esn parameter to the kernel interface add_sa functions

src/libhydra/kernel/kernel_interface.h

@@ -101,6 +101,7 @@ struct kernel_interface_t {
 	 * @param ipcomp		IPComp transform to use
 	 * @param cpi			CPI for IPComp
 	 * @param encap			enable UDP encapsulation for NAT traversal
+	 * @param esn			TRUE to use Extended Sequence Numbers
 	 * @param inbound		TRUE if this is an inbound SA
 	 * @param src_ts		traffic selector with BEET source address
 	 * @param dst_ts		traffic selector with BEET destination address
@@ -113,7 +114,7 @@ struct kernel_interface_t {
 						u_int16_t enc_alg, chunk_t enc_key,
 						u_int16_t int_alg, chunk_t int_key,
 						ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
-						bool encap, bool inbound,
+						bool encap, bool esn, bool inbound,
 						traffic_selector_t *src_ts, traffic_selector_t *dst_ts);
 
 	/**